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Barry stacked some cubes and made this solid object.
How many cubes are in Barry's object altogether?
`26`
`text(Looking at each layer)`
`text(Bottom layer)` | `= 13\ text(cubes)` |
`text(2nd layer)` | `= 7\ text(cubes)` |
`text(3rd layer)` | `= 4\ text(cubes)` |
`text(Top layer)` | `= 2\ text(cubes)` |
`=>\ text(Total cubes used)`
`= 13 + 7 + 4 + 2`
`= 26`